Repair And Maintenance Of Tower Crane Motors

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Repair And Maintenance Of Tower Crane Motors

Electric motors are the crucial parts of a Tower Crane, there are three types of motors for tower crane: Tower Crane Hoist Motor, Tower Crane Trolleying Motor and Tower Crane Slewing Motor. How to maintenance and repair them?

1.Keep tower crane motors are free from dirt, fiber, miscellaneous subjects, water and other conductive liquid; especially on these parts: carbon brush, slip ring and inlet&outlet of ventilation, make sure that they all have good performance.

2. In order to ensure the motors are well lubricated during operation, grease should be applied or replaced every 5000 hrs. First, pay attention to replace the overheated and deteriorated grease in time. Next, remove away the previous grease , clean the shaft and bearing with gasoline. Finally ,follow the instruction to fill the grease into the cavity between inner and outer bearing rings, to degree if it fills 2/3 of the cavity.

3.In case that motor protective device acts continuously, attention should be paid to confirm if the motors are overloaded running or set low in value.

In addition,Check the motor casing and make sure the packing insulation value is over 0.5M.The cable of motor shall be free from damage.Tighten the bolt of motor if have demand.

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Repair And Maintenance Of Tower Crane Motors